linuxlocationparameter
#! /bin/bash
declare -i sum
declare -i muli
if [ $# -lt 2 ];then
echo "usage is please input three argument."
exit 5
fi
let sum=$1+$2
let mult=$1*$2
echo "the sum is $sum"
echo "The mult is $mult"
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网站题目：linuxlocationparameter
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